Tatsuo Morinaga

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STUDY DESIGN The levels of dorsal root ganglia and paravertebral sympathetic ganglia innervating the lumbar facet joint were investigated in rats using the retrograde transport method. The pathways and functions of the nerve fibers supplying the lumbar facet joint were determined immunohistochemically. OBJECTIVES To study lumbar facet pain in relation to(More)
STUDY DESIGN The authors studied the origin of nerves supplying the posterior portion of lumbar intervertebral discs in rats by resection of the sympathetic trunks. OBJECTIVE To understand discogenic low back pain from the innervation of the lumbar intervertebral discs. SUMMARY OF BACKGROUND DATA The afferent pathways of discogenic low back pain have(More)
Osteosarcoma is usually treated with intensive preoperative and postoperative chemotherapy and wide tumor resection, resulting in a 60% to 70% 5-year survival rate. Caffeine has a DNA-repair inhibiting effect. We therefore investigated the impact of caffeine given in conjunction with chemotherapy and limb-sparing surgery on survival and local tumor control(More)
STUDY DESIGN The level of dorsal root ganglia that receives sensory afferent nerves from the anterior portion of the lower lumbar intervertebral disc was investigated in rats using a retrograde transport method. OBJECTIVES Sometimes patients with lower lumbar disc lesions complain of inguinal pain that does not correspond to the dermatome of the injured(More)
BACKGROUND The Japanese Orthopaedic Association (JOA) has investigated the JOA Back Pain Evaluation Questionnaire (JOABPEQ) to evaluate several aspects of low back pain in patients. The score includes five categories (25 items) selected from the Roland Morris Disability Questionnaire and Short Form 36, and a visual analogue scale. Japanese physicians have(More)
This study was designed to investigate neural mechanisms of referred pain in lumbar intervertebral disc lesions. Patients with a degenerative disc in lower lumbar segments occasionally complain of groin pain, which cannot be explained anatomically as having a radicular origin. In rats pretreated with intravenous application of Evans blue dye, the dye(More)
BACKGROUND This study examined the effect of myocutaneous inflammatory changes caused by intra-arterial chemotherapy on the outcome of patients who undergo limb-saving surgery. METHODS One hundred seven patients with malignant bone and soft tissue tumors were administered intra-arterial cisplatin and caffeine preoperatively with or without doxorubicin.(More)
A 55-year-old Japanese woman presented with right knee pain of 1-month duration. Radiological studies revealed bilateral mild osteoarthritic changes in the medial knee joint compartment and symmetrical cysts in the upper tibial metaphyses, extending to the epiphyses. Intraosseous ganglion was considered the most probable diagnosis. However,(More)
STUDY DESIGN A retrospective multicenter survey. OBJECTIVE To investigate the perioperative complications of oblique lateral interbody fusion (OLIF) surgery. SUMMARY OF BACKGROUND DATA OLIF has been widely performed to achieve minimally invasive, rigid lumbar lateral interbody fusion. The associated perioperative complications are not yet well(More)
PURPOSE The pathological mechanism of lumbar spinal stenosis is reduced blood flow in nerve roots and degeneration of nerve roots. Exercise and prostaglandin E1 is used for patients with peripheral arterial disease to increase capillary flow around the main artery and improve symptoms; however, the ankle-brachial index (ABI), an estimation of blood flow in(More)